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A YouTube user found a way to transfer more PlayStation 1 games to the PlayStation Vita using yesterday's firmware update, as opposed to the nine listed on the PlayStation blog. YouTube user FistFullofPotions discovered that downloading PSOne games to the PS3, leaving them uninstalled, then transferring them from the PS3 to the Vita seems to work across the board. As he notes in the video above, this is done at your own risk as these games haven't gone through Sony's quality control. We've confirmed the method with a couple of games, while NeoGAF and Twitter users also had success with it.
The workaround does more than enable more PSOne games on the Vita – it serves to highlight the strangely low number of PSOne games available on Vita in the US, especially when compared to the 129 listed in Europe and the 200+ in Japan. We also discovered at least a couple of unlisted games, Cho Aniki and Money Idol Exchanger, can be downloaded to Vita the usual way and apparently run OK. These games can be downloaded from the Vita PS Store. As long as there is a download button next to a PSOne game on your download list, it can be downloaded straight to Vita, no PS3 required. This is the same 'side-loading' method used to get PSP games that aren't available on the Vita store onto Vitas
Update: NeoGAF has a users-confirmed list of PsOne games that can be transferred using the PS3, and those that can be downloaded from the Vita store as well (in bold). The full list is after the break. 2 Xtreme
Alundra
Arc the Lad
Arc the Lad II
Arcade Hits: Shienryu
Arcade Hits: Sonic Wings Special
Bowling
Breath of Fire IV
Castlevania Chronicles
Castlevania: SotN
Cho Aniki
Cool Boarders
Coolboarders 2
Coolboarders 3
Cool Boarders 2
Cyberbots: Fullmetal Madness
Destruction Derby
Dino Crisis
Dino Crisis 2
Final Fantasy Origins
Final Fantasy IV
Final Fantasy VI
Final Fantasy VII
Final Fantasy VIII
Final Fantasy IX
Front Mission 3
Gex
Gex 3
GaiaSeed
Hot Shots Golf 2
International Track and Field
Jet Moto
Jet Moto 2
Jumping Flash!
Jumping Flash! 2
The King of Fighters '99
Klonoa
Legacy of Kain: Soul Reaver
Legend of Dragoon
MediEval
Mega Man
Mega Man 2
Mega Man 3
Mega Man 4
Metal Gear Solid
Money Idol Exchanger
Pandemonium
Parasite Eve
Parasite Eve 2
Rally Cross
Rapid Angel
Rayman
Rayman 2: The Great Escape
Resident Evil: DC
Resident Evil 2
Resident Evil 3: Nemesis
Ridge Racer 4
Saiyuki: Journey West
Silent Hill
Street Fighter Alpha 1
Street Fighter Alpha 3
Suikoden
Syphon Filter
Syphon Filter 2
Syphon Filter 3
Tekken 2
Threads of Fate
Tomb Raider
Tomb Raider 2
Tomb Raider 3
Tomb Raider: The Last Revelation
Toy Story 2
Toy Story Racer
Twisted Metal 2
Unjammer Lammy
Vagrant Story
Warhawk
Wild Arms
Wild Arms 2
Wipeout
Xenogears
